Dried bananas sell at $4.59/kg and dried apricots sell at $6.59/kg. How many of kilograms of each should be used to make a mixture of 50 kg of dried fruit to sell for $5.20/kg. Solve for substitution or elimination

Respuesta :

Answer:

Weight of dried bananas = 34.75 kg

Weight of dried apricot = 15.25 kg

Step-by-step explanation:

Given that:

Cost of dried bananas = $4.59 per kg

Cost of dried apricots = $6.59 per kg

Total weight of mixture = 50 kg

Sales price of dried fruit = $5.20 per kg

To find:

The weight of each type of dry fruit = ?

Solution:

Let weight of dried bananas = [tex]x[/tex] kg

Let weight of dried apricot = [tex]y[/tex] kg

[tex]x+y=50 ...... (1)[/tex]

Total cost of dried bananas = Cost of dried bananas per kg multiplied by weight of dried bananas

Total cost of dried bananas = $4.59[tex]x[/tex]

Total cost of dried apricots = Cost of dried apricots per kg multiplied by weight of dried apricots

Total cost of dried apricots = $6.59[tex]y[/tex]

As per question statement,

Total cost of dry fruits = $5.20 [tex]\times[/tex] 50 = $260

[tex]260 = 4.59x+6.59y......(2)[/tex]

Using substitution:

By equation (1):

[tex]x = 50-y[/tex]

Putting in equation (2):

[tex]260 = 4.59 (50-y)+6.59y\\\Rightarrow 2y = 260 - 229.5\\\Rightarrow y = 15.25\ kg[/tex]

[tex]x = 50 - 15.25\\\Rightarrow x = 34.75\ kg[/tex]

Therefore, the answer is:

Weight of dried bananas = 34.75 kg

Weight of dried apricot = 15.25 kg

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